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xenio3.h revision 1.1 
      1 /* $NetBSD: xenio3.h,v 1.1 2006/05/07 10:18:28 bouyer Exp $ */
      2 /******************************************************************************
      3  * evtchn.h
      4  *
      5  * Interface to /dev/xen/evtchn.
      6  *
      7  * Copyright (c) 2003-2005, K A Fraser
      8  *
      9  * This file may be distributed separately from the Linux kernel, or
     10  * incorporated into other software packages, subject to the following license:
     11  *
     12  * Permission is hereby granted, free of charge, to any person obtaining a copy
     13  * of this source file (the "Software"), to deal in the Software without
     14  * restriction, including without limitation the rights to use, copy, modify,
     15  * merge, publish, distribute, sublicense, and/or sell copies of the Software,
     16  * and to permit persons to whom the Software is furnished to do so, subject to
     17  * the following conditions:
     18  *
     19  * The above copyright notice and this permission notice shall be included in
     20  * all copies or substantial portions of the Software.
     21  *
     22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     23  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     24  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     25  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     26  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     27  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     28  * IN THE SOFTWARE.
     29  */
     30 
     31 #ifndef __LINUX_PUBLIC_EVTCHN_H__
     32 #define __LINUX_PUBLIC_EVTCHN_H__
     33 
     34 /*
     35  * Bind a fresh port to VIRQ @virq.
     36  * Return allocated port.
     37  */
     38 #define IOCTL_EVTCHN_BIND_VIRQ				\
     39 	_IOWR('E', 4, struct ioctl_evtchn_bind_virq)
     40 struct ioctl_evtchn_bind_virq {
     41 	unsigned int virq;
     42 	unsigned int port;
     43 };
     44 
     45 /*
     46  * Bind a fresh port to remote <@remote_domain, @remote_port>.
     47  * Return allocated port.
     48  */
     49 #define IOCTL_EVTCHN_BIND_INTERDOMAIN			\
     50 	_IOWR('E', 5, struct ioctl_evtchn_bind_interdomain)
     51 struct ioctl_evtchn_bind_interdomain {
     52 	unsigned int remote_domain, remote_port;
     53 	unsigned int port;
     54 };
     55 
     56 /*
     57  * Allocate a fresh port for binding to @remote_domain.
     58  * Return allocated port.
     59  */
     60 #define IOCTL_EVTCHN_BIND_UNBOUND_PORT			\
     61 	_IOWR('E', 6, struct ioctl_evtchn_bind_unbound_port)
     62 struct ioctl_evtchn_bind_unbound_port {
     63 	unsigned int remote_domain;
     64 	unsigned int port;
     65 };
     66 
     67 /*
     68  * Unbind previously allocated @port.
     69  */
     70 #define IOCTL_EVTCHN_UNBIND				\
     71 	_IOW('E', 7, struct ioctl_evtchn_unbind)
     72 struct ioctl_evtchn_unbind {
     73 	unsigned int port;
     74 };
     75 
     76 /*
     77  * Send event to previously allocated @port.
     78  */
     79 #define IOCTL_EVTCHN_NOTIFY				\
     80 	_IOW('E', 8, struct ioctl_evtchn_notify)
     81 struct ioctl_evtchn_notify {
     82 	unsigned int port;
     83 };
     84 
     85 /* Clear and reinitialise the event buffer. Clear error condition. */
     86 #define IOCTL_EVTCHN_RESET				\
     87 	_IO('E', 9)
     88 
     89 #endif /* __LINUX_PUBLIC_EVTCHN_H__ */
     90